<template>
    <!-- 整个页面区域 -->
    <div class="login_container">
        <!-- 中间白色的盒子区域 -->
        <div class="login_box">
          <!-- 头像区域 -->
          <div class="avatar_box">
            <img src="../assets/logo.png" alt="">
          </div>
          <!-- 表单区域 -->
          <el-form :model="loginForm" ref="loginFormRef" :rules="loginFormRules" class="login_form">
            <!-- 用户名 -->
            <el-form-item label="" prop="username">
              <el-input prefix-icon="iconfont icon-user" v-model="loginForm.username"></el-input>
            </el-form-item>
            <!-- 密码 -->
            <el-form-item label="" prop="password">
              <el-input prefix-icon="iconfont icon-3702mima" v-model="loginForm.password"></el-input>
            </el-form-item>
            <el-form-item class="btns">
              <el-button type="primary" @click="login">登录</el-button>
              <el-button type="info" @click="resetLoginForm">重置</el-button>
            </el-form-item>
          </el-form>
          
        </div>
    </div>
</template>
<script>
export default {
  data () {
    return {
      loginForm:{
        username:'',
        password:''
      },
      loginFormRules:{
        //验证用户名
        username:[
          {required:true,message:'请输入登录名称',trigger:'blur'},
          {min:3,max:10,message:'长度在3到10个字符',trigger:'blur'}
        ],
        //验证密码是否合法
        password:[
          {required:true,message:'请输入登录密码',trigger:'blur'},
          {min:6,max:15,message:'长度在6到15个字符',trigger:'blur'}
        ]
      }
    };
  },
    methods:{
      resetLoginForm(){
        this.$refs.loginFormRef.resetFields()
      },
      login(){
        this.$refs.loginFormRef.validate(async valid=>{
          // console.log(valid)
          if(!valid)return;
          const {data:res} = await this.$http.post('login',this.loginForm);
          if(res.meta.status != 200)return this.$message.error('登录失败')
          this.$message.success('登录成功')
          window.sessionStorage.setItem('token',res.data.token)
          this.$router.push('/home')
        })
      }
    }
}
</script>
<style lang='less' scoped>
  .login_container{
    background-color:#2b4b6b;
    height: 100%;
  }
  .login_box{
    width:450px;
    height:300px;
    background-color:#fff;
    border-radius: 3px;
    position: absolute;
    left:50%;
    top:50%;
    transform: translate(-50%,-50%);
  }   

  .avatar_box{
    height:130px;
    width:130px;
    border:1px solid #eee;
    border-radius:50%;
    padding:10px;
    box-shadow:0 0 10px #ddd;
    position: absolute;
    left:50%;
    transform: translate(-50%,-50%);
    background-color: #fff;
    img{
      width:100%;
      height:100%;
      border-radius:50%;
      background-color:#eee;
    }
  }


  .login_form{
    position: absolute;
    bottom: 0;
    left:0;
    width:100%;
    padding:0 20px;
    box-sizing: border-box;
  }
  .btns{
    display: flex;
    justify-content: flex-end;
  }
</style>